| Nilssonia | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Sauropsida (paraphyletic) |
| Subclass: | Anapsida |
| Order: | Testudines |
| Suborder: | Cryptodira |
| Superfamily: | Trionychia |
| Family: | Trionychidae |
| Subfamily: | Trionychinae |
| Genus: | Nilssonia Gray 1872[1] |
| Species | |
|
1-5, see text |
|
| Synonyms[4] | |
Nilssonia is a genus of softshell turtles (family Trionychidae) from rivers, streams, ponds, and lakes in South Asia and Burma. In many treatments, it is monotypic, with the single species Burmese peacock softshell (N. formosa). However, the supposed other genus of peacock softshells, Aspideretes, is more closely related to N. formosa than had been believed. They differ only in the neural plates between the first pleural scale pair of the bony carapace, which are fused into one in N. formosa and unfused in the others.[5]
Thus, it has been proposed to unite the two genera under the older name, Nilssonia. As it seems, the closest living relatives of the Burmese peacock softshell are the Indian softshell turtle (A./N. gangeticus) and the Leith's softshell turtle (A./N. leithii), making the merging of the genera well warranted.[5][4]
Species[edit]
If the genera are united, the five species are:
- Burmese peacock softshell or Burmese softshell turtle N. formosa (Gray, 1869)
- Indian softshell turtle or Ganges softshell turtle N. gangetica (Cuvier, 1825)
- Indian peacock softshell turtle N. hurum (Gray, 1831)
- Leith's softshell turtle or Nagpur softshell turtle N. leithii (Gray, 1872)
- Black softshell turtle or Bostami turtle N. nigricans (Anderson, 1875)
References[edit]
- ^ a b Gray, John Edward. 1872. Notes on the mud-tortoises of India (Trionyx, Geoffroy). Annals and Magazine of Natural History (4)10:326–340.
- ^ Gray, John Edward. 1873. Notes on mud-tortoises (Trionyx, Geoffroy), and on the skulls of the different kinds. Proceedings of the Zoological Society of London 1873:38–72.
- ^ Hay, Oliver P. 1904. On the existing genera of the Trionychidae. Proceedings of the American Philosophical Society 42:268–274.
- ^ a b Turtle Taxonomy Working Group [van Dijk, P.P., Iverson, J.B., Rhodin, A.G.J., Shaffer, H.B., and Bour, R.]. 2014. Turtles of the world, 7th edition: annotated checklist of taxonomy, synonymy, distribution with maps, and conservation status. In: Rhodin, A.G.J., Pritchard, P.C.H., van Dijk, P.P., Saumure, R.A., Buhlmann, K.A., Iverson, J.B., and Mittermeier, R.A. (Eds.). Conservation Biology of Freshwater Turtles and Tortoises: A Compilation Project of the IUCN/SSC Tortoise and Freshwater Turtle Specialist Group. Chelonian Research Monographs 5(7):000.329–479, doi:10.3854/ crm.5.000.checklist.v7.2014. Cite error: Invalid
<ref>tag; name "ttwg" defined multiple times with different content (see the help page). - ^ a b Praschag, P.; Hundsdörfer, A.K.; Reza, A.H.M.A. & Fritz, U. (2007): Genetic evidence for wild-living Aspideretes nigricans and a molecular phylogeny of South Asian softshell turtles (Reptilia: Trionychidae: Aspideretes, Nilssonia). Zool. Scripta 36(4): 301–310. doi:10.1111/j.1463-6409.2007.00282.x (HTML abstract)
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